Process for surfacing pavements.



eae aoe IINITED STATES GEORGE H. LUTZ, OF KANSAS CITY,

PATNT OFFIGE.

MISSOURI, ASSIGNOR TO EQUITABLE PROCESS FOR SURFACING PAVEMENTS.

To It]? YIfII/OUI 'fiJ'n/rr coll/car:

Be it known that I, GEORGE H. LUTZ, a

citizen of the United States, residing at Kansas City, in the county ofJackson and State 5 Missouri, have invented certain new and usei fulImprovements in Processes for Surfacing Pavements; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to a process for surfacing pavements, and isespecially adaptable to pavements having a foundation of stone, brick,or like material on which it is desired to place an asphaltic or likesurface, the process being more particularly adaptable for resurfacingstreets which have formerly been paved with granite blockgbrick, or likematerial.

It is the object of my invention to provide a process of applying theupper coat to the pavement so that it will adhere firmly thereto andwill not slip or creep on the foundation.

I have discovered that when an asphaltic or like surface is applied tothe blocks or foundation when the latter is at its normal temperaturethe adhesion is imperfect and there is a tendency of the surface tocreep and lump, making an uneven or wavy surface, but that should theblocks or foundation be heated and the outer coat be then applied aperfect adhesion is secured and a much more substantial pavement formed.

visable, although not indispensable, that the blocks or foundation bewashed before heating in order to remove dirt and grit.

My process consists, therefore, in heating Specification of LettersPatent.

Application filed November 26, 1906. Serial No- 845,061.

It is also ad Patented April 16, 1907.

the blocks and then applying ,a wash of a 40 bituminous mixture theretowhile the foundation is hot and in applying a crust of a bituminous orasphaltic nature, the wash be- 3 ing preferably he'a'tedbefore itsapplication 1 and the crust being also hot when applied in 4 5 order tofacilitate its working to a smooth and even surface.

This process is not only adaptable to the formation of new pavements,but is highly V/ advantageous in resurfacing old pavements I) of graniteblocks, brick, or like material.

| l l l Having thus described my invention, what a? A 5" I claim asnewtherein, and deslre to secure, 5;

by Letters Patent, is i 1. The process of surfacing pavements 5 5consisting of mfingnadiase, of ,applyin ra YQmllLLMb.ihnniingusnatureihereto, and inX 0 5 epplyinga coat-of thick asphalt,Orhke material to said base when so treated.

The process of surfacing pavementsv consisting of heating a base ofstone or like blocks, and applying a coatofheated asphalt thereto.

3. The process of jnlifacing rpaxtements, consisting of heatinga solid hase, applying 65 flWQQQIti QL adhesive substance thereto, and surfa gingjvith a mi; of her ed asphalt or .like materialifor the purpose setforth;

4. A pavement comprising a base of granite or like blocks, a coat ofadhesive substance covering said blocks, and a surface of asphalt orlike material.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE II. LUTZ.

WVitnesses i W. C. OFF, 4

ARTHUR L. JELLER.

